Pen



FIG. 1 is a perspective view of the pen, showing my new design.

FIG. 2 is a right side elevational view of FIG. 1.

FIG. 3 is a front elevational view of FIG. 1.

FIG. 4 is a left side elevational view of FIG. 1.

FIG. 5 is a rear elevational view of FIG. 1.

FIG. 6 is a bottom plan view of FIG. 1; and,

FIG. 7 is a top plan view of FIG. 1.

The ornamental design for a pen, as shown and described.